<template>
  <view>
    <view class="goods-list">
        <view v-for="(goods, i) in goodsList" :key="i" @click="gotoDetail(goods)">
          <my-goods :goods="goods"></my-goods>
        </view>
      </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        queryObj: {
          query: '',
          cid: '',
          pagenum: 1,
          pagesize: 10
        },
        goodsList: [],
        total: 0,
        isLoading: false
      };
    },
    onLoad(options){
      this.queryObj.query = options.query || '';
      this.queryObj.cid = options.cid || '';
      this.getGoodsList();
    },
    methods: {
      async getGoodsList(cb){
        this.isLoading = true;
        try{
          const res = await uni.$http.get('/api/public/v1/goods/search', this.queryObj);
          this.isLoading = false;
          
          cb && cb();
          
          if(res.meta.status !== 200) return uni.$showMsg();
          this.goodsList = [...this.goodsList, ...res.message.goods];
          this.total = res.message.total;
        }catch(e){
          //TODO handle the exception
          this.isLoading = false;
          uni.$showMsg();
        }
      },
      
      gotoDetail({goods_id}){
        uni.navigateTo({
          url: `/subpkg/goods_detail/goods_detail?goods_id=${goods_id}`
        })
      }
    },
    onReachBottom(){
      if(this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕！')
      
      if(this.isLoading) return;
      this.queryObj.pagenum += 1;
      this.getGoodsList();
    },
    
    onPullDownRefresh(){
      this.queryObj.pagenum = 1;
      this.total = 0;
      this.isLoading = false;
      this.goodsList = [];
      
      this.getGoodsList(() => uni.stopPullDownRefresh());
    }
  }
</script>

<style lang="scss">

</style>
